Prepare for the winners of **IOCCC28**. > However these are not the 2024 droids you are looking for. :-) The HTML menu (both JavaScript and non-JavaScript) has been updated. The `Status -> Rules and guidelines' have been replaced with two separate menus `Status -> IOCCC rules` and `Status -> IOCCC guidelines`. Added a new top level `social.html` page: built from a new `social.md`. Sorted rules for building specific web pages in the top level `Makefile`. Added `make social` to make the `social.html` page from `social.md`. The `bin/gen-top-html.sh` now is able to process a argument of **social** to process the new top level `social.html` page. Changed `bin/gen-top-html.sh` VERSION from "2.0.0 2025-03-13" to "2.0.1 2025-07-25". Below `About -> Home page` a new `About -> IOCCC social media` menu item as added. Because the menu change touched every HTML file, we changed the general copyright date range for HTML files from "1984-2024" to "1984-2025" due to the extensive changes made for **IOCCC28**. Those markdown files that were modified in 2025 had their copyright date range also changed from "1984-2024" to "1984-2025". Rebuilt tarballs and sitemap due to the extensive HTML rebuilding. Ran `make update` to perform the above.
2.6 KiB
To build:
make all
There is an alternate version, based on the original, that can be compiled in modern systems but likely won't do anything. See Alternate code below.
To use:
./isaak
Alternate code:
The original version of this code is in isaak.alt.c, with a minor fix so that it will compile. The original entry starts with the line:
main(){};
This works on some systems. Why? Note that #include <stdio.h> is given on
the last line. Why is this needed? Note the unusual calls to sprintf(3).
This version also relied on being able to define #define to something else and
using that macro for #define. This was fixed, however, so that you can at
least compile it in modern systems.
This version will not likely work on modern systems even though you should be able to compile it.
Alternate build:
make alt
Alternate use:
Use isaak.alt as you would isaak above.
Judges' remarks:
The program relies heavily on ASCII. Don't even think of running it on an EBCDIC machine.
Historical notes about the original entry
NOTE: If you named the file anything other than isaak.c, you had to
change the #include on line 6. This limitation has been fixed in
isaak.c and
isaak.alt.c by using the __FILE__ macro.
NOTE: The use of null comments to separate macros to construct different tokens
from a single macro (e.g., "O/**/O" creates either ++ or -- by defining
O to be + or -) may cause some strict ANSI C preprocessors to object.
NOTE: Most System V machines were not be able to execute this program correctly
due to the fact that BSD style systems have an sprintf(3) that returns a char *. Due to the above problems, we placed the output of this program in the
file isaak.output.txt. Since this was fixed, this file is
not strictly necessary, but we keep it for historical purposes (decoded as it
used to be uuencoded). See the
isaak.orig.c for the original source.
FYI: We are likely to be more strict about portability in the future.
Author's remarks:
No remarks were provided by the author.